Using some（）fuels ，such as natural gas， in vehicles can generally；reduce harmful pollutants and exhaust emissions._精华吧

Using some（）fuels ，such as natural gas， in vehicles can generally；reduce harmful pollutants and exhaust emissions.

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Using some（）fuels ，such as natural gas， in vehicles can generally；reduce harmful pollutants and exhaust emissions.

A.optional

B.alternative

C.replacement

D.substitute

正确答案：substitute

Tag：体验综合商务英语时间：2024-01-12 10:36:20

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